Radon exhalation rate from soil samples of South Kumaun Lesser Himalayas, India

Prasad, Yogesh; Prasad, Ganesh; Gusain, G. S.; Choubey, V.M.; Ramola, R. C.

doi:10.1016/j.radmeas.2008.04.056

Cited by 42 publications

(20 citation statements)

References 18 publications

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“…Concerning the lower EC Ra values, however, they do not diverge dramatically from other soil sample values from the Himalayas (Singh et al, 1999;Ramola and Choubey, 2003;Singh et al, 2007;Prasad et al, 2008). The distribution of EC Ra results from the sediment samples of the Gokarna Terrace, displayed in Fig.…”

Section: Characterization Of Ec Ra Values In the Deposits Of Kathmandmentioning

confidence: 72%

“…A small number of studies have given EC Ra values of soils, in particular in the Himalayas. Indeed, EC Ra of soil samples have been measured, most often in India (Ramola and Choubey, 2003;Prasad et al, 2008): for example, Singh et al (1999) have found a value of 13 ± 1 Bq kg À1 for one soil sample from Bihar, whereas Singh et al (2007) have found an average value of 3.2 ± 0.2 Bq kg À1 for soil samples from Himachal Himalayas.…”

Section: Introductionmentioning

confidence: 99%

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Radon emanation of heterogeneous basin deposits in Kathmandu Valley, Nepal

Girault

Gajurel

Perrier

et al. 2011

Journal of Asian Earth Sciences

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Section: Characterization Of Ec Ra Values In the Deposits Of Kathmandmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Radon emanation of heterogeneous basin deposits in Kathmandu Valley, Nepal

Girault

Gajurel

Perrier

et al. 2011

Journal of Asian Earth Sciences

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“…In the past decades, systematic radon surveys in soil-gas were carried out in different parts of India (Prasad et al 2005(Prasad et al , 2008Bajwa et al 2010;Singh et al 2010a;Mehra and Bala 2013).…”

Section: Introductionmentioning

confidence: 99%

Measurement of soil-gas radon in some areas of northern Rajasthan, India

Duggal

Rani²,

Mehra

2014

J Earth Syst Sci

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The health hazards of the radioactive gas radon on general public are well known. In order to understand the level and distribution of 222 Rn concentrations in soil-gas in Sri Ganganagar district of Rajasthan, a 222 Rn survey was carried out for the first time using RAD7, an electronic radon detector manufactured by Durridge Company (USA), at different locations covering a total area of 10,978 km 2 , having a population of approximately 20 lakh. The measurement of 222 Rn concentration in soil-gas was carried out at four different depths (10, 40, 70, and 100 cm). The radon concentration in soil-gas for 10, 40, 70, and 100 cm depths ranged from 0.09-4.25, 0.15-6.30, 0.50-9.18, and 0.72-10.40 kBq m −3 , respectively. The minimum value of radon concentration is observed in 33 GB village at 10 cm depth and maximum for Mohanpura village at 100 cm depth. As expected, our data show an increase of soil-gas radon concentration levels with depth. The present results are compared with the available radon data from other studies.

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“…This is known as emanation process and the total amount of radon emitted by pore space to environment is called the exhalation. The fraction of radon emanation and its exhalation rate depend on the geology of the area, soil porosity, structures (shears, faults and thrusts) and associated uranium mineralization (Choubey & Ramola, 1997;Duenas & Fernandez, 1987;Holkko & Liukkonen, 1993;Hubbard & Hagberg, 1996;Hubbard, Hagberg, & Enflo, 1992;Markkanen & Arvela, 1992;Prasad, Prasad, Gusain, Choubey, & Ramola, 2008;Ramola & Choubey, 2003;Ramola et al, 2012;Ramola, Singh, & Virk, 1988). Radon emanation rate is highest when soil moisture is between 15 and 20% in weight (Damkjaer & Korsbeck, 1985;Lindmark & Rosen, 1985;Stranden, Kolstad, & Lind, 1984).…”

Section: Introductionmentioning

confidence: 99%

Distribution of natural radionuclide along Main Central Thrust in Garhwal Himalaya

Ramola

Yadav²,

Gusain³

2014

Journal of Radiation Research and Applied Sciences

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RadiumThorium Radon Dose a b s t r a c t Study of natural radionuclide is important to assess the radiation level in a particular area.Radionuclide present in earth's crust is different for different geological areas because of the variety of soil and rocks present in a particular area. In present study, the estimation of natural radionuclides have been carried out along the Main Central Thrust (MCT) in Uttarkashi, Budhakedar, Ukhimath and Healang regions of Garhwal Himalaya, India. The large variations in the radionuclide distribution have been estimated along the Main Central Thrust. The 226 Ra, 232 Th and 40 K contents in MCT area varies from 8 ± 1 Bq.kg À1 to 285 ± 28 Bq.kg À1 with an average of 64 Bq.kg À1 , 7 ± 1 Bq.kg À1 to 136 ± 15 Bq.kg À1 with an average 69 Bq.kg À1 and 115 ± 18 Bq.kg À1 to 1588 ± 162 Bq.kg À1 with an average 792 Bq.kg À1 , respectively. The radon exhalation rate and radon concentration in the soil of study area varies from 2.20 Â 10 À5 Bq.kg À1 h À1 to 3.2 Â 10 À5 Bq.kg À1 h À1 and 287 Bq/m 3 to 417 Bq/m 3 , respectively. It was observed that the distribution of natural radionuclide in the soil of study area is not uniform and concentrated along geological active region. These values of radionuclide and radon mass exhalation rate may be used as baseline data for further study in the area.

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Radon exhalation rate from soil samples of South Kumaun Lesser Himalayas, India

Cited by 42 publications

References 18 publications

Radon emanation of heterogeneous basin deposits in Kathmandu Valley, Nepal

Radon emanation of heterogeneous basin deposits in Kathmandu Valley, Nepal

Measurement of soil-gas radon in some areas of northern Rajasthan, India

Distribution of natural radionuclide along Main Central Thrust in Garhwal Himalaya

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